Overall the NPH-775-1 and NPH-K8-1 are both a good CPU cooler. The thing that we did not like was the noise that the stock fan produced. The installation was also a little complicated due to the fact that motherboard removal was required. On the other hand, the performance that this cooler showed was a little disappointing. Not forgetting that the NPH-775-1 and NPH-K8-1 is fully copper and comes with a single heat column with a nice copper base. If you think that the NPH-775-1 and NPH-K8-1 appeals to you, you might want to grab one for your LGA775 or K8 setup.